The less fat milk you start with, the more tart the yogurt is.
- Sweeteners, if desired (see last preparation direction)
Pour half gallon of whole milk (8 cups) into crock pot. Cover and turn crock pot on low. Cook for 2.5 hours. Turn the crock pot on high for 1/2 hour.
Turn crock pot off and let set, covered, for 3 hours.
Remove 2 cups of milk from the crock pot. Pour into bowl and mix in 1/2 cup of yogurt. This is a “starter” and contains the cultures that will allow the milk to develop into yogurt. Pour milk and yogurt mixture back into crock pot and stir.
Cover crock pot and wrap with a heavy towel. Let set 8 hours or overnight.
If flavored yogurt is desired, you may stir in fruit, honey, jam, or other sweeteners. Experiment to find the flavorings you enjoy. You can also mix equal parts fruit juice and yogurt to make a drinkable yogurt.